Cod sursa(job #1513875)
| Utilizator | Data | 30 octombrie 2015 09:38:41 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.56 kb |
#include <iostream>
#include <fstream>
#define mod 1999999973
using namespace std;
ifstream fi("lgput.in");
ofstream fo("lgput.out");
long n, p;
void solve();
long lgput(long n, long p);
int main()
{
solve();
fi.close();
fo.close();
return 0;
}
void solve()
{
fi >> n >> p;
fo << lgput(n, p);
}
long lgput(long n, long p)
{
if (p == 1)
return n;
long half = lgput(n, p/2) % mod;
if (p % 2 == 1)
return (((half * half) % mod) * n) % mod;
else
return (half * half) % mod;
}